title: Effects of Ca2+ and Mg2+ on motility of sea urchin spermatozoa.
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004492:Edetic Acid / Q000494:pharmacology; D004533:Egtazic Acid / Q000494:pharmacology; D008274:Magnesium / Q000494:pharmacology*; D008297:Male; D012617:Sea Urchins / Q000502:physiology*; D013081:Sperm Motility / Q000187:drug effects*
chemical_list: D004533:Egtazic Acid; D004492:Edetic Acid; D008274:Magnesium; D002118:Calcium